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IP ranges

NTT IP ranges

Every IPv4 and IPv6 range that NTT (AS2914) currently announces on the internet, with CIDR and start/end IP, free to download as TXT or CSV. Data snapshot: 2026-11-02.

NTT announces 1,690 IPv4 prefixes covering 6,694,656 addresses, and 10 IPv6 prefixes, through AS2914. The lists below are a snapshot of 2026-11-02 taken from the public BGP routing table, sorted by address and kept as announced.

ASNAS2914
IPv4 prefixes1,690
IPv4 addresses6,694,656Overlaps are counted once
IPv6 prefixes10
Data snapshot

Download the complete list

The complete list has 1,700 ranges (IPv4 and IPv6). TXT has one CIDR per line; CSV has the columns cidr, version, start_ip, end_ip and addresses.

Download TXTDownload CSVIPv4 only (TXT)IPv6 only (TXT)

NTT IPv4 ranges

IPv4 ranges announced by NTT: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2.27.158.0/242.27.158.0–2.27.158.255256
5.158.208.0/215.158.208.0–5.158.215.2552,048
5.182.28.0/225.182.28.0–5.182.31.2551,024
13.141.112.0/2313.141.112.0–13.141.113.255512
13.141.114.0/2313.141.114.0–13.141.115.255512
13.141.116.0/2313.141.116.0–13.141.117.255512
13.141.118.0/2313.141.118.0–13.141.119.255512
14.137.231.0/2414.137.231.0–14.137.231.255256
14.137.232.0/2414.137.232.0–14.137.232.255256
14.137.233.0/2414.137.233.0–14.137.233.255256
14.137.234.0/2414.137.234.0–14.137.234.255256
14.137.236.0/2414.137.236.0–14.137.236.255256
14.137.240.0/2414.137.240.0–14.137.240.255256
16.216.6.0/2416.216.6.0–16.216.6.255256
16.216.7.0/2416.216.7.0–16.216.7.255256
16.216.9.0/2416.216.9.0–16.216.9.255256
16.216.13.0/2416.216.13.0–16.216.13.255256
16.216.14.0/2416.216.14.0–16.216.14.255256
16.216.15.0/2416.216.15.0–16.216.15.255256
16.216.16.0/2416.216.16.0–16.216.16.255256
16.216.17.0/2416.216.17.0–16.216.17.255256
16.216.18.0/2416.216.18.0–16.216.18.255256
16.216.20.0/2416.216.20.0–16.216.20.255256
16.216.21.0/2416.216.21.0–16.216.21.255256
16.216.24.0/2416.216.24.0–16.216.24.255256
16.216.25.0/2416.216.25.0–16.216.25.255256
23.26.72.0/2423.26.72.0–23.26.72.255256
23.26.238.0/2423.26.238.0–23.26.238.255256
23.27.241.0/2423.27.241.0–23.27.241.255256
23.133.28.0/2423.133.28.0–23.133.28.255256
23.133.116.0/2423.133.116.0–23.133.116.255256
23.133.156.0/2423.133.156.0–23.133.156.255256
23.133.164.0/2423.133.164.0–23.133.164.255256
23.133.228.0/2423.133.228.0–23.133.228.255256
23.133.236.0/2423.133.236.0–23.133.236.255256
23.134.28.0/2423.134.28.0–23.134.28.255256
23.134.36.0/2423.134.36.0–23.134.36.255256
23.134.60.0/2423.134.60.0–23.134.60.255256
23.134.68.0/2423.134.68.0–23.134.68.255256
23.134.172.0/2423.134.172.0–23.134.172.255256
23.134.196.0/2423.134.196.0–23.134.196.255256
23.134.228.0/2423.134.228.0–23.134.228.255256
23.134.236.0/2423.134.236.0–23.134.236.255256
23.135.4.0/2423.135.4.0–23.135.4.255256
23.135.44.0/2423.135.44.0–23.135.44.255256
23.135.60.0/2423.135.60.0–23.135.60.255256
23.135.76.0/2423.135.76.0–23.135.76.255256
23.135.84.0/2423.135.84.0–23.135.84.255256
23.149.92.0/2423.149.92.0–23.149.92.255256
23.231.1.0/2423.231.1.0–23.231.1.255256
23.231.2.0/2423.231.2.0–23.231.2.255256
23.231.3.0/2423.231.3.0–23.231.3.255256
27.50.96.0/1927.50.96.0–27.50.127.2558,192
27.110.64.0/2127.110.64.0–27.110.71.2552,048
31.56.154.0/2431.56.154.0–31.56.154.255256
31.56.158.0/2431.56.158.0–31.56.158.255256
31.56.159.0/2431.56.159.0–31.56.159.255256
31.56.168.0/2431.56.168.0–31.56.168.255256
31.56.169.0/2431.56.169.0–31.56.169.255256
31.56.170.0/2431.56.170.0–31.56.170.255256
31.56.171.0/2431.56.171.0–31.56.171.255256
31.56.174.0/2431.56.174.0–31.56.174.255256
31.56.175.0/2431.56.175.0–31.56.175.255256
31.57.115.0/2431.57.115.0–31.57.115.255256
31.58.34.0/2331.58.34.0–31.58.35.255512
31.193.240.0/2231.193.240.0–31.193.243.2551,024
31.193.244.0/2231.193.244.0–31.193.247.2551,024
31.222.208.0/2231.222.208.0–31.222.211.2551,024
31.222.212.0/2231.222.212.0–31.222.215.2551,024
36.50.32.0/2436.50.32.0–36.50.32.255256
36.50.33.0/2436.50.33.0–36.50.33.255256
37.34.80.0/2137.34.80.0–37.34.87.2552,048
40.27.48.0/2440.27.48.0–40.27.48.255256
40.27.49.0/2440.27.49.0–40.27.49.255256
40.27.50.0/2440.27.50.0–40.27.50.255256
40.27.52.0/2440.27.52.0–40.27.52.255256
40.27.53.0/2440.27.53.0–40.27.53.255256
40.27.54.0/2440.27.54.0–40.27.54.255256
40.27.133.0/2440.27.133.0–40.27.133.255256
43.230.54.0/2443.230.54.0–43.230.54.255256
43.231.184.0/2443.231.184.0–43.231.184.255256
43.231.186.0/2443.231.186.0–43.231.186.255256
43.231.187.0/2443.231.187.0–43.231.187.255256
43.231.189.0/2443.231.189.0–43.231.189.255256
43.231.190.0/2443.231.190.0–43.231.190.255256
43.231.191.0/2443.231.191.0–43.231.191.255256
43.246.128.0/2443.246.128.0–43.246.128.255256
43.246.130.0/2443.246.130.0–43.246.130.255256
43.246.131.0/2443.246.131.0–43.246.131.255256
43.246.196.0/2443.246.196.0–43.246.196.255256
43.246.197.0/2443.246.197.0–43.246.197.255256
43.246.199.0/2443.246.199.0–43.246.199.255256
43.249.242.0/2443.249.242.0–43.249.242.255256
43.250.88.0/2443.250.88.0–43.250.88.255256
43.250.91.0/2443.250.91.0–43.250.91.255256
43.251.184.0/2443.251.184.0–43.251.184.255256
43.251.185.0/2443.251.185.0–43.251.185.255256
43.251.186.0/2443.251.186.0–43.251.186.255256
45.15.98.0/2445.15.98.0–45.15.98.255256
45.39.214.0/2445.39.214.0–45.39.214.255256
45.67.117.0/2445.67.117.0–45.67.117.255256
45.85.204.0/2245.85.204.0–45.85.207.2551,024
45.88.146.0/2345.88.146.0–45.88.147.255512
45.124.61.0/2445.124.61.0–45.124.61.255256
45.143.8.0/2445.143.8.0–45.143.8.255256
45.145.176.0/2245.145.176.0–45.145.179.2551,024
45.146.114.0/2445.146.114.0–45.146.114.255256
45.149.6.0/2445.149.6.0–45.149.6.255256
45.192.160.0/2445.192.160.0–45.192.160.255256
45.192.161.0/2445.192.161.0–45.192.161.255256
45.192.163.0/2445.192.163.0–45.192.163.255256
45.192.172.0/2445.192.172.0–45.192.172.255256
45.192.175.0/2445.192.175.0–45.192.175.255256
45.192.181.0/2445.192.181.0–45.192.181.255256
45.192.182.0/2445.192.182.0–45.192.182.255256
45.192.187.0/2445.192.187.0–45.192.187.255256
45.192.188.0/2445.192.188.0–45.192.188.255256
45.192.189.0/2445.192.189.0–45.192.189.255256
45.192.190.0/2445.192.190.0–45.192.190.255256
45.192.244.0/2445.192.244.0–45.192.244.255256
45.195.244.0/2345.195.244.0–45.195.245.255512
45.201.12.0/2245.201.12.0–45.201.15.2551,024
45.202.112.0/2445.202.112.0–45.202.112.255256
45.204.149.0/2445.204.149.0–45.204.149.255256
45.204.150.0/2445.204.150.0–45.204.150.255256
45.204.151.0/2445.204.151.0–45.204.151.255256
45.237.171.0/2445.237.171.0–45.237.171.255256
46.20.98.0/2446.20.98.0–46.20.98.255256
46.202.35.0/2446.202.35.0–46.202.35.255256
46.202.53.0/2446.202.53.0–46.202.53.255256
46.203.148.0/2446.203.148.0–46.203.148.255256
46.203.176.0/2446.203.176.0–46.203.176.255256
46.203.178.0/2446.203.178.0–46.203.178.255256
46.203.197.0/2446.203.197.0–46.203.197.255256
46.203.205.0/2446.203.205.0–46.203.205.255256
46.203.223.0/2446.203.223.0–46.203.223.255256
46.203.225.0/2446.203.225.0–46.203.225.255256
49.0.176.0/2449.0.176.0–49.0.176.255256
49.0.177.0/2449.0.177.0–49.0.177.255256
49.0.178.0/2449.0.178.0–49.0.178.255256
49.0.179.0/2449.0.179.0–49.0.179.255256
49.0.180.0/2449.0.180.0–49.0.180.255256
49.0.181.0/2449.0.181.0–49.0.181.255256
49.0.182.0/2449.0.182.0–49.0.182.255256
49.0.183.0/2449.0.183.0–49.0.183.255256
50.2.4.0/2450.2.4.0–50.2.4.255256
50.2.7.0/2450.2.7.0–50.2.7.255256
50.2.28.0/2450.2.28.0–50.2.28.255256
50.2.56.0/2450.2.56.0–50.2.56.255256
50.2.57.0/2450.2.57.0–50.2.57.255256
50.2.71.0/2450.2.71.0–50.2.71.255256
50.2.106.0/2450.2.106.0–50.2.106.255256
50.2.164.0/2450.2.164.0–50.2.164.255256
50.2.165.0/2450.2.165.0–50.2.165.255256
50.2.181.0/2450.2.181.0–50.2.181.255256
50.2.182.0/2450.2.182.0–50.2.182.255256
50.2.208.0/2450.2.208.0–50.2.208.255256
50.2.209.0/2450.2.209.0–50.2.209.255256
50.2.210.0/2450.2.210.0–50.2.210.255256
50.2.211.0/2450.2.211.0–50.2.211.255256
50.3.2.0/2450.3.2.0–50.3.2.255256
50.3.3.0/2450.3.3.0–50.3.3.255256
50.3.54.0/2350.3.54.0–50.3.55.255512
50.3.64.0/2350.3.64.0–50.3.65.255512
50.3.96.0/2350.3.96.0–50.3.97.255512
50.3.118.0/2450.3.118.0–50.3.118.255256
50.3.119.0/2450.3.119.0–50.3.119.255256
50.3.169.0/2450.3.169.0–50.3.169.255256
50.3.190.0/2450.3.190.0–50.3.190.255256
50.3.209.0/2450.3.209.0–50.3.209.255256
50.20.224.0/2150.20.224.0–50.20.231.2552,048
50.31.236.0/2450.31.236.0–50.31.236.255256
50.114.26.0/2350.114.26.0–50.114.27.255512
50.114.103.0/2450.114.103.0–50.114.103.255256
50.114.162.0/2450.114.162.0–50.114.162.255256
50.114.171.0/2450.114.171.0–50.114.171.255256
50.114.175.0/2450.114.175.0–50.114.175.255256
50.114.186.0/2450.114.186.0–50.114.186.255256
50.114.191.0/2450.114.191.0–50.114.191.255256
51.194.148.0/2251.194.148.0–51.194.151.2551,024
51.241.100.0/2251.241.100.0–51.241.103.2551,024
51.241.156.0/2451.241.156.0–51.241.156.255256
51.241.157.0/2451.241.157.0–51.241.157.255256
51.241.158.0/2451.241.158.0–51.241.158.255256
51.241.236.0/2251.241.236.0–51.241.239.2551,024
61.15.209.0/2461.15.209.0–61.15.209.255256
61.15.216.0/2461.15.216.0–61.15.216.255256
61.15.223.0/2461.15.223.0–61.15.223.255256
61.15.226.0/2461.15.226.0–61.15.226.255256
61.58.32.0/2061.58.32.0–61.58.47.2554,096
61.120.144.0/2061.120.144.0–61.120.159.2554,096
61.124.32.0/2461.124.32.0–61.124.32.255256
61.124.33.0/2461.124.33.0–61.124.33.255256
61.124.34.0/2461.124.34.0–61.124.34.255256
61.124.35.0/2461.124.35.0–61.124.35.255256
61.124.36.0/2461.124.36.0–61.124.36.255256
61.124.37.0/2461.124.37.0–61.124.37.255256
61.124.38.0/2461.124.38.0–61.124.38.255256
61.124.39.0/2461.124.39.0–61.124.39.255256
61.124.40.0/2461.124.40.0–61.124.40.255256
61.124.41.0/2461.124.41.0–61.124.41.255256
61.200.80.0/2061.200.80.0–61.200.95.2554,096
61.213.144.0/2061.213.144.0–61.213.159.2554,096
61.213.160.0/1961.213.160.0–61.213.191.2558,192
61.251.96.0/2061.251.96.0–61.251.111.2554,096
62.73.160.0/1962.73.160.0–62.73.191.2558,192
62.84.248.0/2162.84.248.0–62.84.255.2552,048
64.8.248.0/2464.8.248.0–64.8.248.255256
64.8.249.0/2464.8.249.0–64.8.249.255256
64.8.250.0/2464.8.250.0–64.8.250.255256
64.8.251.0/2464.8.251.0–64.8.251.255256
64.8.252.0/2464.8.252.0–64.8.252.255256
64.8.253.0/2464.8.253.0–64.8.253.255256
64.32.149.0/2464.32.149.0–64.32.149.255256
64.32.163.0/2464.32.163.0–64.32.163.255256
64.32.179.0/2464.32.179.0–64.32.179.255256
64.32.180.0/2264.32.180.0–64.32.183.2551,024
64.32.184.0/2264.32.184.0–64.32.187.2551,024
64.74.118.0/2464.74.118.0–64.74.118.255256
64.74.197.0/2464.74.197.0–64.74.197.255256
64.81.182.0/2464.81.182.0–64.81.182.255256
64.93.24.0/2464.93.24.0–64.93.24.255256
64.93.25.0/2464.93.25.0–64.93.25.255256
64.93.26.0/2464.93.26.0–64.93.26.255256
64.93.27.0/2464.93.27.0–64.93.27.255256
64.93.28.0/2464.93.28.0–64.93.28.255256
64.93.29.0/2464.93.29.0–64.93.29.255256
64.93.30.0/2464.93.30.0–64.93.30.255256
64.93.31.0/2464.93.31.0–64.93.31.255256
64.95.48.0/2464.95.48.0–64.95.48.255256
64.95.148.0/2464.95.148.0–64.95.148.255256
64.137.52.0/2364.137.52.0–64.137.53.255512
64.139.0.0/2264.139.0.0–64.139.3.2551,024
64.139.9.0/2464.139.9.0–64.139.9.255256
64.139.12.0/2464.139.12.0–64.139.12.255256
64.139.13.0/2464.139.13.0–64.139.13.255256
64.139.15.0/2464.139.15.0–64.139.15.255256
64.178.96.0/2064.178.96.0–64.178.111.2554,096
64.204.62.0/2464.204.62.0–64.204.62.255256
64.204.149.0/2464.204.149.0–64.204.149.255256
64.205.212.0/2264.205.212.0–64.205.215.2551,024
65.87.2.0/2465.87.2.0–65.87.2.255256
65.87.3.0/2465.87.3.0–65.87.3.255256
66.6.56.0/2266.6.56.0–66.6.59.2551,024
66.80.56.0/2266.80.56.0–66.80.59.2551,024
66.80.61.0/2466.80.61.0–66.80.61.255256
66.80.100.0/2266.80.100.0–66.80.103.2551,024
66.93.255.0/2466.93.255.0–66.93.255.255256
66.227.112.0/2266.227.112.0–66.227.115.2551,024
66.253.99.0/2466.253.99.0–66.253.99.255256
68.64.134.0/2468.64.134.0–68.64.134.255256
68.64.135.0/2468.64.135.0–68.64.135.255256
68.64.142.0/2468.64.142.0–68.64.142.255256
68.64.154.0/2468.64.154.0–68.64.154.255256
68.64.191.0/2468.64.191.0–68.64.191.255256
68.68.240.0/2268.68.240.0–68.68.243.2551,024
68.166.231.0/2468.166.231.0–68.166.231.255256
68.166.234.0/2468.166.234.0–68.166.234.255256
68.166.235.0/2468.166.235.0–68.166.235.255256
68.166.255.0/2468.166.255.0–68.166.255.255256
68.167.186.0/2368.167.186.0–68.167.187.255512
69.3.132.0/2269.3.132.0–69.3.135.2551,024
69.3.140.0/2469.3.140.0–69.3.140.255256
69.3.141.0/2469.3.141.0–69.3.141.255256
69.3.142.0/2469.3.142.0–69.3.142.255256
69.3.212.0/2469.3.212.0–69.3.212.255256
69.3.213.0/2469.3.213.0–69.3.213.255256
69.3.214.0/2469.3.214.0–69.3.214.255256
69.3.215.0/2469.3.215.0–69.3.215.255256
69.3.216.0/2269.3.216.0–69.3.219.2551,024
69.3.220.0/2269.3.220.0–69.3.223.2551,024
69.3.232.0/2469.3.232.0–69.3.232.255256
69.3.233.0/2469.3.233.0–69.3.233.255256
69.3.234.0/2469.3.234.0–69.3.234.255256
69.3.235.0/2469.3.235.0–69.3.235.255256
69.3.236.0/2469.3.236.0–69.3.236.255256
69.25.84.0/2369.25.84.0–69.25.85.255512
69.166.213.0/2469.166.213.0–69.166.213.255256
70.39.128.0/2470.39.128.0–70.39.128.255256
70.39.130.0/2470.39.130.0–70.39.130.255256
70.39.131.0/2470.39.131.0–70.39.131.255256
70.39.132.0/2470.39.132.0–70.39.132.255256
70.39.133.0/2470.39.133.0–70.39.133.255256
70.39.134.0/2470.39.134.0–70.39.134.255256
70.39.135.0/2470.39.135.0–70.39.135.255256
70.39.136.0/2470.39.136.0–70.39.136.255256
70.39.140.0/2470.39.140.0–70.39.140.255256
70.39.141.0/2470.39.141.0–70.39.141.255256
70.39.143.0/2470.39.143.0–70.39.143.255256
70.39.158.0/2470.39.158.0–70.39.158.255256
70.39.164.0/2470.39.164.0–70.39.164.255256
70.39.231.0/2470.39.231.0–70.39.231.255256
70.39.241.0/2470.39.241.0–70.39.241.255256
70.39.252.0/2470.39.252.0–70.39.252.255256
72.9.164.0/2272.9.164.0–72.9.167.2551,024
72.9.172.0/2272.9.172.0–72.9.175.2551,024
72.9.176.0/2272.9.176.0–72.9.179.2551,024
72.9.184.0/2272.9.184.0–72.9.187.2551,024
72.9.188.0/2272.9.188.0–72.9.191.2551,024
72.9.225.0/2472.9.225.0–72.9.225.255256
72.13.241.0/2472.13.241.0–72.13.241.255256
72.22.96.0/2272.22.96.0–72.22.99.2551,024
72.244.109.0/2472.244.109.0–72.244.109.255256
72.244.111.0/2472.244.111.0–72.244.111.255256
72.244.212.0/2472.244.212.0–72.244.212.255256
72.244.240.0/2472.244.240.0–72.244.240.255256
72.244.246.0/2472.244.246.0–72.244.246.255256
72.244.248.0/2472.244.248.0–72.244.248.255256
72.245.128.0/2172.245.128.0–72.245.135.2552,048
72.245.136.0/2172.245.136.0–72.245.143.2552,048
72.245.144.0/2172.245.144.0–72.245.151.2552,048
72.245.152.0/2172.245.152.0–72.245.159.2552,048
74.2.230.0/2374.2.230.0–74.2.231.255512
74.211.234.0/2474.211.234.0–74.211.234.255256
78.231.0.0/1878.231.0.0–78.231.63.25516,384
78.231.64.0/1878.231.64.0–78.231.127.25516,384
78.231.128.0/1878.231.128.0–78.231.191.25516,384
78.231.192.0/1878.231.192.0–78.231.255.25516,384
78.235.32.0/1978.235.32.0–78.235.63.2558,192
78.235.64.0/1978.235.64.0–78.235.95.2558,192
78.235.96.0/1978.235.96.0–78.235.127.2558,192
78.235.128.0/1978.235.128.0–78.235.159.2558,192
78.235.160.0/1978.235.160.0–78.235.191.2558,192
78.235.192.0/1978.235.192.0–78.235.223.2558,192
78.235.224.0/1978.235.224.0–78.235.255.2558,192
79.132.180.0/2479.132.180.0–79.132.180.255256
79.132.181.0/2479.132.181.0–79.132.181.255256
79.132.183.0/2479.132.183.0–79.132.183.255256
79.132.188.0/2479.132.188.0–79.132.188.255256
79.132.190.0/2479.132.190.0–79.132.190.255256
79.135.141.0/2479.135.141.0–79.135.141.255256
79.182.53.0/2479.182.53.0–79.182.53.255256
79.182.59.0/2479.182.59.0–79.182.59.255256
79.182.65.0/2479.182.65.0–79.182.65.255256
79.182.73.0/2479.182.73.0–79.182.73.255256
79.182.74.0/2479.182.74.0–79.182.74.255256
79.182.78.0/2479.182.78.0–79.182.78.255256
79.182.127.0/2479.182.127.0–79.182.127.255256
79.182.129.0/2479.182.129.0–79.182.129.255256
79.182.241.0/2479.182.241.0–79.182.241.255256
79.183.91.0/2479.183.91.0–79.183.91.255256
80.46.192.0/2080.46.192.0–80.46.207.2554,096
80.46.208.0/2080.46.208.0–80.46.223.2554,096
80.81.47.0/2480.81.47.0–80.81.47.255256
80.97.54.0/2480.97.54.0–80.97.54.255256
80.174.0.0/2480.174.0.0–80.174.0.255256
80.174.1.0/2480.174.1.0–80.174.1.255256
80.174.144.0/2380.174.144.0–80.174.145.255512
80.174.248.0/2480.174.248.0–80.174.248.255256
80.224.192.0/2280.224.192.0–80.224.195.2551,024
80.224.240.0/2280.224.240.0–80.224.243.2551,024
81.19.96.0/2081.19.96.0–81.19.111.2554,096
81.20.64.0/2081.20.64.0–81.20.79.2554,096
81.25.192.0/2081.25.192.0–81.25.207.2554,096
81.93.176.0/2081.93.176.0–81.93.191.2554,096
81.93.208.0/2081.93.208.0–81.93.223.2554,096
81.180.173.0/2481.180.173.0–81.180.173.255256
81.181.172.0/2481.181.172.0–81.181.172.255256
81.181.175.0/2481.181.175.0–81.181.175.255256
81.181.236.0/2281.181.236.0–81.181.239.2551,024
82.21.98.0/2482.21.98.0–82.21.98.255256
82.21.99.0/2482.21.99.0–82.21.99.255256
82.26.139.0/2482.26.139.0–82.26.139.255256
82.26.143.0/2482.26.143.0–82.26.143.255256
82.26.144.0/2482.26.144.0–82.26.144.255256
82.29.48.0/2482.29.48.0–82.29.48.255256
82.38.12.0/2482.38.12.0–82.38.12.255256
82.38.62.0/2482.38.62.0–82.38.62.255256
82.38.93.0/2482.38.93.0–82.38.93.255256
82.38.94.0/2482.38.94.0–82.38.94.255256
82.38.95.0/2482.38.95.0–82.38.95.255256
82.38.98.0/2482.38.98.0–82.38.98.255256
82.38.113.0/2482.38.113.0–82.38.113.255256
82.38.120.0/2482.38.120.0–82.38.120.255256
82.38.131.0/2482.38.131.0–82.38.131.255256
82.38.144.0/2482.38.144.0–82.38.144.255256
82.38.145.0/2482.38.145.0–82.38.145.255256
82.38.146.0/2482.38.146.0–82.38.146.255256
82.38.151.0/2482.38.151.0–82.38.151.255256
82.38.169.0/2482.38.169.0–82.38.169.255256
82.38.172.0/2482.38.172.0–82.38.172.255256
82.38.175.0/2482.38.175.0–82.38.175.255256
82.38.181.0/2482.38.181.0–82.38.181.255256
82.39.164.0/2482.39.164.0–82.39.164.255256
82.47.30.0/2482.47.30.0–82.47.30.255256
82.47.40.0/2482.47.40.0–82.47.40.255256
82.47.43.0/2482.47.43.0–82.47.43.255256
82.47.44.0/2482.47.44.0–82.47.44.255256
82.47.53.0/2482.47.53.0–82.47.53.255256
82.47.107.0/2482.47.107.0–82.47.107.255256
82.47.110.0/2482.47.110.0–82.47.110.255256
82.47.111.0/2482.47.111.0–82.47.111.255256
82.47.113.0/2482.47.113.0–82.47.113.255256
82.47.116.0/2482.47.116.0–82.47.116.255256
82.47.118.0/2482.47.118.0–82.47.118.255256
82.47.119.0/2482.47.119.0–82.47.119.255256
82.47.122.0/2482.47.122.0–82.47.122.255256
82.47.135.0/2482.47.135.0–82.47.135.255256
82.47.151.0/2482.47.151.0–82.47.151.255256
82.47.156.0/2482.47.156.0–82.47.156.255256
82.47.163.0/2482.47.163.0–82.47.163.255256
82.47.173.0/2482.47.173.0–82.47.173.255256
82.47.178.0/2482.47.178.0–82.47.178.255256
82.47.183.0/2482.47.183.0–82.47.183.255256
82.47.209.0/2482.47.209.0–82.47.209.255256
82.47.210.0/2482.47.210.0–82.47.210.255256
82.47.213.0/2482.47.213.0–82.47.213.255256
82.47.215.0/2482.47.215.0–82.47.215.255256
82.47.223.0/2482.47.223.0–82.47.223.255256
82.47.248.0/2482.47.248.0–82.47.248.255256
82.112.96.0/1982.112.96.0–82.112.127.2558,192
82.198.241.0/2482.198.241.0–82.198.241.255256
82.198.244.0/2482.198.244.0–82.198.244.255256
82.198.245.0/2482.198.245.0–82.198.245.255256
82.198.248.0/2482.198.248.0–82.198.248.255256
83.217.224.0/1983.217.224.0–83.217.255.2558,192
83.223.131.0/2483.223.131.0–83.223.131.255256
83.223.138.0/2483.223.138.0–83.223.138.255256
83.223.140.0/2483.223.140.0–83.223.140.255256
83.223.152.0/2483.223.152.0–83.223.152.255256
83.223.156.0/2483.223.156.0–83.223.156.255256
83.223.158.0/2483.223.158.0–83.223.158.255256
83.231.128.0/1783.231.128.0–83.231.255.25532,768
84.75.128.0/2484.75.128.0–84.75.128.255256
84.75.136.0/2484.75.136.0–84.75.136.255256
84.75.137.0/2484.75.137.0–84.75.137.255256
84.75.146.0/2384.75.146.0–84.75.147.255512
84.75.163.0/2484.75.163.0–84.75.163.255256
84.75.167.0/2484.75.167.0–84.75.167.255256
84.75.173.0/2484.75.173.0–84.75.173.255256
84.75.184.0/2384.75.184.0–84.75.185.255512
84.75.186.0/2384.75.186.0–84.75.187.255512
84.75.208.0/2484.75.208.0–84.75.208.255256
84.75.244.0/2484.75.244.0–84.75.244.255256
84.75.245.0/2484.75.245.0–84.75.245.255256
84.232.28.0/2484.232.28.0–84.232.28.255256
84.236.196.0/2484.236.196.0–84.236.196.255256
85.11.163.0/2485.11.163.0–85.11.163.255256
85.11.180.0/2485.11.180.0–85.11.180.255256
85.120.128.0/2285.120.128.0–85.120.131.2551,024
85.120.132.0/2285.120.132.0–85.120.135.2551,024
85.122.176.0/2285.122.176.0–85.122.179.2551,024
85.234.170.0/2485.234.170.0–85.234.170.255256
85.234.171.0/2485.234.171.0–85.234.171.255256
85.234.172.0/2285.234.172.0–85.234.175.2551,024
85.234.176.0/2285.234.176.0–85.234.179.2551,024
85.239.145.0/2485.239.145.0–85.239.145.255256
85.254.14.0/2485.254.14.0–85.254.14.255256
85.254.41.0/2485.254.41.0–85.254.41.255256
85.254.46.0/2485.254.46.0–85.254.46.255256
86.104.25.0/2486.104.25.0–86.104.25.255256
86.105.159.0/2486.105.159.0–86.105.159.255256
86.107.63.0/2486.107.63.0–86.107.63.255256
87.76.170.0/2487.76.170.0–87.76.170.255256
87.76.208.0/2487.76.208.0–87.76.208.255256
87.76.210.0/2487.76.210.0–87.76.210.255256
87.84.77.0/2487.84.77.0–87.84.77.255256
87.84.216.0/2487.84.216.0–87.84.216.255256
87.84.217.0/2487.84.217.0–87.84.217.255256
87.84.238.0/2487.84.238.0–87.84.238.255256
87.246.8.0/2487.246.8.0–87.246.8.255256
87.246.9.0/2487.246.9.0–87.246.9.255256
87.246.10.0/2487.246.10.0–87.246.10.255256
87.246.11.0/2487.246.11.0–87.246.11.255256
88.148.24.0/2388.148.24.0–88.148.25.255512
88.148.29.0/2488.148.29.0–88.148.29.255256
88.148.54.0/2488.148.54.0–88.148.54.255256
88.148.56.0/2488.148.56.0–88.148.56.255256
88.148.60.0/2488.148.60.0–88.148.60.255256
88.148.61.0/2488.148.61.0–88.148.61.255256
88.148.84.0/2488.148.84.0–88.148.84.255256
88.223.176.0/2088.223.176.0–88.223.191.2554,096
88.223.180.0/2488.223.180.0–88.223.180.255256
88.223.183.0/2488.223.183.0–88.223.183.255256
88.223.189.0/2488.223.189.0–88.223.189.255256
88.223.190.0/2488.223.190.0–88.223.190.255256
88.223.191.0/2488.223.191.0–88.223.191.255256
88.223.208.0/2488.223.208.0–88.223.208.255256
88.223.211.0/2488.223.211.0–88.223.211.255256
88.223.216.0/2488.223.216.0–88.223.216.255256
88.223.217.0/2488.223.217.0–88.223.217.255256
88.223.218.0/2488.223.218.0–88.223.218.255256
88.223.219.0/2488.223.219.0–88.223.219.255256
88.223.244.0/2288.223.244.0–88.223.247.2551,024
89.35.149.0/2489.35.149.0–89.35.149.255256
89.40.161.0/2489.40.161.0–89.40.161.255256
89.44.64.0/2489.44.64.0–89.44.64.255256
89.187.5.0/2489.187.5.0–89.187.5.255256
89.187.11.0/2489.187.11.0–89.187.11.255256
91.186.160.0/1991.186.160.0–91.186.191.2558,192
91.190.37.0/2491.190.37.0–91.190.37.255256
91.190.186.0/2491.190.186.0–91.190.186.255256
91.190.191.0/2491.190.191.0–91.190.191.255256
91.202.56.0/2291.202.56.0–91.202.59.2551,024
91.242.70.0/2491.242.70.0–91.242.70.255256
91.242.74.0/2491.242.74.0–91.242.74.255256
91.242.105.0/2491.242.105.0–91.242.105.255256
92.61.107.0/2492.61.107.0–92.61.107.255256
92.61.110.0/2492.61.110.0–92.61.110.255256
92.112.240.0/2492.112.240.0–92.112.240.255256

Showing the first 500 of 1,690 ranges. Download the TXT or CSV file for the complete list.

NTT IPv6 ranges

IPv6 ranges announced by NTT: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2001:218::/322001:218::–2001:218:ffff:ffff:ffff:ffff:ffff:ffff296
2001:218:8000::/382001:218:8000::–2001:218:83ff:ffff:ffff:ffff:ffff:ffff290
2001:218:e000::/382001:218:e000::–2001:218:e3ff:ffff:ffff:ffff:ffff:ffff290
2001:418::/322001:418::–2001:418:ffff:ffff:ffff:ffff:ffff:ffff296
2001:728::/322001:728::–2001:728:ffff:ffff:ffff:ffff:ffff:ffff296
2001:d38::/322001:d38::–2001:d38:ffff:ffff:ffff:ffff:ffff:ffff296
2001:d40::/322001:d40::–2001:d40:ffff:ffff:ffff:ffff:ffff:ffff296
2404:3600::/322404:3600::–2404:3600:ffff:ffff:ffff:ffff:ffff:ffff296
2602:ffb7:580::/462602:ffb7:580::–2602:ffb7:583:ffff:ffff:ffff:ffff:ffff282
2804:8f8::/322804:8f8::–2804:8f8:ffff:ffff:ffff:ffff:ffff:ffff296

All 10 ranges are listed.

About the NTT IP range data

  • ASNs and holders

    NTT announces its prefixes from AS2914. Holders in the registry: AS2914 (NTT-DATA-2914 - NTT America, Inc.).

  • What the list contains

    The ranges are the prefixes these ASNs announce in the public BGP routing table (obtained through RIPEstat), with adjacent blocks left unmerged. This is not an ownership record: it can include prefixes of customers and leased address space, and it can miss routes that very few peers see. Snapshot of 2026-11-02.

  • Typical uses

    Allow or block traffic from NTT in a firewall, WAF or nginx, label source IPs in your logs by network, or test with a CIDR match whether an IP belongs to NTT. Remember that cloud and carrier address space also runs the services of customers, so blocking a whole network can hit unrelated sites.

How to use the NTT IP list

  1. Start with the tables above: one for IPv4 and one for IPv6, each row with CIDR, start IP – end IP and address count.
  2. Choose Download TXT or Download CSV for the complete list. The file has all 1,700 ranges, not only the first rows shown on the page.
  3. Import the TXT as one address set into your firewall, router or ipset, or paste the CIDRs into a cloud security group rule.
  4. Check the snapshot date (2026-11-02) before using it in production. Cloud ranges change often, so compare with the official range file published by the provider.

NTT IP ranges: frequently asked questions

How many IP ranges does NTT have?

As of 2026-11-02, NTT announces 1,690 IPv4 prefixes covering 6,694,656 addresses and 10 IPv6 prefixes in the public BGP routing table, through AS2914.

What is the ASN of NTT?

NTT uses AS2914. Holders in the registry: AS2914 (NTT-DATA-2914 - NTT America, Inc.). Large organisations often run several ASNs, and this page merges the ones listed here.

How do I use the NTT IP list for a firewall allowlist or blocklist?

Download the TXT file (one CIDR per line) and import it into ipset, nftables, an nginx allow or deny include, a router address list or a cloud security group. Import the 1,700 ranges as one address set rather than as separate rules. The address space of NTT also hosts the services of its customers, so blocking all of it can cut off unrelated sites.

How often is the NTT IP list updated?

The list is a snapshot of 2026-11-02, regenerated about once a week from public BGP data (RIPEstat). Announcements change every day, so download it again before using it in production, and for cloud providers also compare it with the official range file they publish.

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